油气水三相流产出剖面光纤持气率计响应规律的实验研究

为进一步研究油气水三相流产出剖面测井中光纤持气率计在高含水情况下的响应规律,在大庆油田多相流实验装置上进行了动态实验研究。实验结果表明,当油的流量一定,高含水的情况下,气量在5~10m3/d变化时测量持气率值与实际持气率值之间误差变化较大。气量大于10m3/d时误差变化较小,说明该仪器适合测量气量在10m3/d以上的混合流体。此结果对光纤持气率计的进一步优化设计提供了实验依据。

Experimental research on response of profile logging optical fiber gas holdup sensor in oil/gas/water three-phase flow

In order to continue the investigate between output profile logging with oil/gas/water three-phase flow and optical fiber gas hold under high water content , performing the dynamic experiments with multiphase flow in Daqing oilfield. The results indicate that the gas flow content change from 5m₃/d~10m₃/d that have great different between measure with actual measure under high water content when the oil is fixed. And there are smaller error when the gas flow content over 10m₃/d, that indicate this instrument is suitable for measuring gas mixed fluid when the gas flow content is over 10m₃/d. Hence ad, the results has provided more powerful basis to further optimize the optical fiber gas holdup.